发明公开
EP0459801A2 Readily processable polyimide and preparation process of same
失效
Leicht zu verarbeitende聚酰亚胺和Herstellung二酯。
- 专利标题： Readily processable polyimide and preparation process of same
- 专利标题（中）： Leicht zu verarbeitende聚酰亚胺和Herstellung二酯。
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申请号： EP91304893.0申请日： 1991-05-30
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公开(公告)号： EP0459801A2公开(公告)日： 1991-12-04
- 发明人: Tamai, Shoji , Yamaguchi, Akihiro , Ohta, Masahiro
- 申请人： MITSUI TOATSU CHEMICALS, Inc.
- 申请人地址： 2-5 Kasumigaseki 3-chome Chiyoda-Ku Tokyo 100 JP
- 专利权人： MITSUI TOATSU CHEMICALS, Inc.
- 当前专利权人： MITSUI TOATSU CHEMICALS, Inc.
- 当前专利权人地址： 2-5 Kasumigaseki 3-chome Chiyoda-Ku Tokyo 100 JP
- 代理机构： Rackham, Anthony Charles
- 优先权： JP141274/90 19900601; JP166634/90 19900627; JP166637/90 19900627; JP187885/90 19900718; JP196374/90 19900726
- 主分类号： C08G73/10
- IPC分类号： C08G73/10
摘要：
A readily melt processable polyimide obtained by reacting diamine represented by the formula :
wherein n is an integer of 1 or 2, with 3,3′,4,4′-diphenylethertetracarboxylic dianhydride and/or 4,4′-(p-phenylenedioxy)diphthalic dianhydride or a mixture of these tetracarboxylic acid dianhydrides and pyromellitic dianhydride in the presence of phthalic anhydride, is disclosed.
wherein n is an integer of 1 or 2, with 3,3′,4,4′-diphenylethertetracarboxylic dianhydride and/or 4,4′-(p-phenylenedioxy)diphthalic dianhydride or a mixture of these tetracarboxylic acid dianhydrides and pyromellitic dianhydride in the presence of phthalic anhydride, is disclosed.
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